Rubber shoe



(No Model.) Q SGHUMMBL RUBBER SHOE.

No. 432,149. Patented July 15, 1890.

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UNITED STATES PATENT OFFICE.

CARL SCI-IUMMEL, OF HOBOKEN, NEIV JERSEY.

RUBBER SHOE.

SPECIFICATION forming part of Letters Patent No. 432,149, dated July 15,1890.

Application-inea April 25, 1890.

To all whom it may concern.-

Be it known that I, CARL SOHUMMEL, of Hoboken, Hudson county, NewJersey, have invented an Improved Rubber Shoe, of which the following isa specification.

This invention relates to a rubber shoe provided with an inner platehavin g down wardlyextending spurs that pierce the soleof the shoe. Inthis way the sole is protected against rapid wear, while the spurs atthe same time constitute ice-Creepers.

The invention consists in the various features of improvement more fullypointed out in the claim.

In the accompanying drawings, Figure 1 is a bottom view of my improvedrubber shoe; Fig. 2, a vertical section on line x m, Fig. 1, with sole apartly broken away. Figs. 3 and 4 are bottom views of the heel-plate band sole-plate h', respectively. Figs. 5 and G are edge views of saidplates, and Fig. 7 a face view of one of the plugs c.

The letter a represents a rubber shoe or boot of ordinary or suitableconstruction and having the usual rubber sole a. Into the shoe a thereis placed upon the sole a a perforated metal heel-plate b andaperforated metal sole-plate b. If desired, howeveigonly one plate needbe used, either the heel-plate or the sole-plate. The plates Z) b areprovided with downwardly-extending spurs b2, that pass through and belowthe sole a to constitute ice-Creepers and protect the sole against rapidwear. Into the perforations h3 of the plates b b', I place small rubberplugs c, that fill out such openings and are iiush at serai No. 949,426.ma model.)

their upper faces with the faces of the plates. Over the plates b b andthe plugs c, I place a rubber insole d and a superposed lining e.

In manufacturing the shoe the plates b b', plugs c, and insole d areproperly put in place within the shoe, with the spurs projecting`through the sole a. The entire shoe is then put into the vulcanizer.'I-Iere the parts a c (Z will become all united into one piece, properlyconfining the perforated plates b b between them. The spurs b2 should becoated with rubber cement, so that in vulcanizing, the rubber sole acloses up tightly around them and no opening is left for the water toenter.

The rubber plugs c. are of the same thickness substantially as thespur-carrying plates l) b. Thus these plugs, besides uniting the insoleto the shoe-sole, prevent the insole from caving into the openings ofplates b b.

I claim as my inventionrlhe combination of a rubber shoe with outer solea', a perforated plate, spurs on said plate, rubber plugs fitted withinthe openings of said plate, so as to close the same and produce an evenupper surface, and an insole above the plate and the plugs, the plugsbeing united at their upper and lower faces, respectively, to the insoleand the shoe-sole, and preventing sagging of theinsole, substantially asspecified.

CARL SCHUMMEL.

Witnesses:

F. v. BEIEsEN, A. JONGHMANs.

